convex isotherm

in chromatography
https://doi.org/10.1351/goldbook.CT06937
@[email protected], the slope of which is continuously decreasing.
Note:
The resulting chromatographic peak is @[email protected] Adsorption isotherms are often of this type. A special case is the Langmuir adsorption isotherm.
Source:
PAC, 1996, 68, 1591. (Nomenclature for non-linear chromatography (IUPAC Recommendations 1996)) on page 1593 [Terms] [Paper]